CVE-2026-51924Network attack vector

Authenticated code execution via unsanitized upload chain

Published Jul 9, 2026 · Updated Jul 9, 2026

Improper input validation in docuForm FSM Client 11.11c allows remote authenticated users to execute arbitrary code through report.php. Multiple access points fail to sanitize user-supplied input, and the file-upload path combines with other flaws to execute code on the host. A low-privilege account is required; successful exploitation exposes sensitive data, permits system-configuration changes, and interrupts service.

CVSS severity8.8
High
EPSS probability0.57%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper input validation in docuForm FSM Client 11.11c allows remote authenticated users to execute arbitrary code through report.php. Multiple access points fail to sanitize user-supplied input, and the file-upload path combines with other flaws to execute code on the host. A low-privilege account is required; successful exploitation exposes sensitive data, permits system-configuration changes, and interrupts service.

The record

CVE
CVE-2026-51924
Published
Jul 9, 2026
Updated
Jul 9, 2026
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-20, T1190
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jul 9, 2026CVE publishedPublication date reported by the CVE source.
  2. Jul 9, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

8.8ZeroBreach GmbHCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-20Improper Input Validation
T1190Exploit Public-Facing Application

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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